Results 31 to 40 of about 7,615,775 (267)
Sustainability, 2022 The roof control of a fully mechanized mining face has a significant impact on coal extraction. Therefore, information about strata behavior and differentiated control measures for abnormal roofs are needed. In the present research, we used the ground pressure theory to calculate the interval of the first and periodic weighting of working faces 11113 ...
Qiang Fu +4 more
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Study on dynamic modification method of 3D model of coal seam in fully mechanized working face
Gong-kuang zidonghua, 2022 The high-precision coal seam geographic information of fully mechanized working face is the key to realizing intelligent unmanned mining. However, the vertical precision of 3D model of coal seam constructed at this stage is low. The model cannot meet the actual needs of intelligent mining.
LIANG Shua +4 more
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Design of remote operating station of support of fully-mechanized automation system
Gong-kuang zidonghua, 2016 In view of the problem that existing fully-mechanized automation system of working face takes manual operation means as main control means which needs more staff present, a remote operating station of support of fully-mechanized automation system was ...
YAO Yupeng
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UWB based measurement system for pushing progress of fully mechanized working face
Gong-kuang zidonghuaA real-time measurement system for the pushing progress of fully mechanized working face based on UWB ranging technology is proposed to address the problems of existing measurement and calculation methods, such as time-consuming, labor-intensive, large cumulative errors, and inability to recalculate after sensor damage.
LIU Qing, LIU Junfeng
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Digital coal seam-based precision mining system for fully mechanized working face
Gong-kuang zidonghua, 2021 The current automatic coal mining technology with memory cutting as the core technology cannot perceive the changes of geological conditions of the working face autonomously, and the shearer can hardly realize automatic height adjustment control ...
LI Xu1 +4 more
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Real-time 3D mapping method of fully mechanized working face based on laser SLAM
Gong-kuang zidonghua, 2022 The mobile mapping method relies on fiber optic inertial navigation with high precision and odometer to calculate the position and attitude. But in the actual engineering practice, the precision of odometer is difficult to meet the application requirements, resulting in incomplete 3D laser point cloud of working face.
QI Yuhao, GUAN Shiyuan
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Three-dimensional coal seam modeling of fully mechanized working face based on transparent geology
Gong-kuang zidonghua, 2022 The three-dimensional coal seam modeling method based on transparent geology is an effective way to indirectly solve the problem of coal rock identification. Most of the existing three-dimensional coal seam modeling methods focus on the expression of spatial three-dimensional entities. There is a lack of research on the dynamic change of coal seam roof
XUE Guohua
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Coal mine intelligence，mine 5G and network hard slicing technology
Gong-kuang zidonghua, 2021 In order to reduce the number of operators in the working face of coal mines, an unmanned 5G ground remote control method for working face is proposed.
SUN Jiping
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Sudden change mechanism of mine pressure in fully mechanized caving face and its countermeasures
Meikuang Anquan, 2022 In view of the sudden change of mine pressure in 226 upper 02 fully mechanized caving face of Huangyuchuan Coal Mine, the mechanism and countermeasures of sudden change of mine pressure in fully mechanized caving face are studied by using the methods of
LI Yong, WANG Zhuoying
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Influence of Valleys Terrain on Pressure of Fully Mechanized Working Faces in Shallow Coal Seams [PDF]
Shock and Vibration, 2021 The absence of a key stratum during overburden rock movement is crucial to the mining pressure of fully mechanized coal mining faces. Using physical and numerical simulations, the 21304 mechanized mining in Daliuta and Huojitu coal mining faces 1−2 appeared twice during a pressure frame accident analysis.
YingJie Liu, Qingjie Qi, Anhu Wang
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